#include <ossimElevationCellDatabase.h>

Inheritance diagram for ossimElevationCellDatabase:

Classes
struct	CellInfo

Public Types
typedef std::map< ossim_uint64, ossimRefPtr< CellInfo > >	CellMap

Public Types inherited from ossimConnectableObject
enum	ossimConnectableObjectDirectionType { CONNECTABLE_DIRECTION_NONE = 0, CONNECTABLE_DIRECTION_INPUT = 1, CONNECTABLE_DIRECTION_OUTPUT = 2 }

typedef std::vector< ossimRefPtr< ossimConnectableObject > >	ConnectableObjectList

Public Member Functions
	ossimElevationCellDatabase ()

	ossimElevationCellDatabase (const ossimElevationCellDatabase &src)

virtual bool	loadState (const ossimKeywordlist &kwl, const char *prefix=0)

virtual bool	saveState (ossimKeywordlist &kwl, const char *prefix=0) const

virtual ossim_uint32	getMinOpenCells () const

virtual ossim_uint32	getMaxOpenCells () const

virtual void	setMinMaxOpenCells (ossim_uint64 minCellCount, ossim_uint64 maxCellCount)

virtual bool	getMemoryMapCellsFlag () const

virtual void	setMemoryMapCellsFlag (bool flag)

virtual void	getOpenCellList (std::vector< ossimFilename > &list) const

void	getCellsForBounds (const ossim_float64 &minLat, const ossim_float64 &minLon, const ossim_float64 &maxLat, const ossim_float64 &maxLon, std::vector< ossimFilename > &cells, ossim_uint32 maxNumberOfCells=0)
	Gets a list of elevation cells needed to cover bounding box. More...

virtual ossim_uint64	createId (const ossimGpt &) const

virtual ossimRefPtr< ossimElevCellHandler >	getOrCreateCellHandler (const ossimGpt &gpt)

virtual std::ostream &	print (std::ostream &out) const
	Outputs theErrorStatus as an ossimErrorCode and an ossimString. More...

Public Member Functions inherited from ossimElevationDatabase
	ossimElevationDatabase ()

	ossimElevationDatabase (const ossimElevationDatabase &src)

virtual bool	getAccuracyInfo (ossimElevationAccuracyInfo &, const ossimGpt &) const

virtual double	getMeanSpacingMeters () const
	METHOD: meanSpacingMeters() This method returns the post spacing in the region of gpt: More...

virtual void	setGeoid (ossimGeoid *geoid)

ossimGeoid *	getGeoid ()

const ossimGeoid *	getGeoid () const

virtual bool	open (const ossimString &connectionString)=0
	Open a connection to a database. More...

const ossimString &	getConnectionString () const

Public Member Functions inherited from ossimElevSource
virtual double	getHeightAboveMSL (const ossimGpt &)=0
	Height access methods: More...

virtual double	getHeightAboveEllipsoid (const ossimGpt &)

virtual ossimObject *	dup () const =0

bool	intersectRay (const ossimEcefRay &ray, ossimGpt &gpt, double defaultElevValue=0.0)
	METHOD: intersectRay() More...

virtual double	getMinHeightAboveMSL () const
	Access methods for the bounding elevations: More...

virtual double	getMaxHeightAboveMSL () const

double	getNullHeightValue () const
	Special numeric quantities as defined by this source: More...

double	getSeaLevelValue () const

virtual bool	pointHasCoverage (const ossimGpt &) const =0
	METHOD: pointHasCoverage(gpt) Returns TRUE if coverage exists over gpt: More...

virtual const ossimGrect &	getBoundingGndRect () const
	METHODS: accuracyLE90(), accuracyCE90() Returns the vertical and horizontal accuracy (90% confidence) in the region of gpt: More...

virtual bool	canConnectMyInputTo (ossim_int32 inputIndex, const ossimConnectableObject *object) const
	required to be overriden by derived classes More...

virtual void	initialize ()
	Implement ossimSource base-class pure virtuals: More...

virtual bool	getComputeStatisticsFlag () const
	Opens a stream to an elevation cell. More...

virtual void	setComputeStatisticsFlag (bool flag)
	Sets the flag which controls whether or not statistics will be computed upon opening a cell and not finding a corresponding statistics file. More...

Public Member Functions inherited from ossimSource
	ossimSource (ossimObject *owner=0)

	ossimSource (ossimObject *owner, ossim_uint32 inputListSize, ossim_uint32 outputListSize, bool inputListIsFixedFlag=true, bool outputListIsFixedFlag=true)

virtual	~ossimSource ()

virtual bool	isSourceEnabled () const

virtual void	enableSource ()

virtual void	disableSource ()

virtual bool	getEnableFlag () const

virtual void	setEnableFlag (bool flag)

virtual bool	isInitialized () const

virtual void	setInitializedFlag (bool flag)

virtual void	setProperty (ossimRefPtr< ossimProperty > property)

virtual ossimRefPtr< ossimProperty >	getProperty (const ossimString &name) const

virtual void	getPropertyNames (std::vector< ossimString > &propertyNames) const

Public Member Functions inherited from ossimConnectableObject
	ossimConnectableObject (ossimObject *owner=0)
	Base constructor of this object. More...

	ossimConnectableObject (ossimObject *owner, ossim_int32 inputListSize, ossim_int32 outputListSize, bool inputListIsFixedFlag=true, bool outputListIsFixedFlag=true)

virtual	~ossimConnectableObject ()

void	setId (const ossimId &id)
	All connectable objects will have id's. More...

const ossimId &	getId () const
	Will allow us to get this object's id. More...

const ossimObject *	getOwner () const
	Fetches the current owner, most likely a container but not limited to one. More...

virtual void	changeOwner (ossimObject *owner)
	Permits changing the object's owner. More...

virtual void	setDescription (const ossimString &description)

virtual ossimString	getDescription () const

virtual bool	isConnected (ossimConnectableObjectDirectionType direction=CONNECTABLE_DIRECTION_INPUT) const
	will check the direction specified to see if all slots are full. More...

	OSSIM_DEPRECATE_METHOD (virtual ossimConnectableObject *findConnectableObject(const ossimId &id))

	OSSIM_DEPRECATE_METHOD (virtual ossimConnectableObject *findObjectOfType(RTTItypeid typeId, ossimConnectableObjectDirectionType directionType, bool recurse=true))

	OSSIM_DEPRECATE_METHOD (virtual ossimConnectableObject *findObjectOfType(const ossimString &obj, ossimConnectableObjectDirectionType directionType, bool recurse=true))

	OSSIM_DEPRECATE_METHOD (virtual ossimConnectableObject *findInputObjectOfType(const ossimString &className))

virtual ossim_int32	findInputIndex (const ossimConnectableObject *object)
	Return a valid index of the input list if the passed in object is found else return -1. More...

virtual ossim_int32	findInputIndex (const ossimId &id)
	Return a valid index of the input list if the passed id is found else return -1. More...

virtual ossim_int32	findOutputIndex (const ossimConnectableObject *object)
	Return a valid index of the output list if the passed in object is found else return -1. More...

virtual ossim_int32	findOutputIndex (const ossimId &id)
	Return a valid index of the output list if the passed in object is found else return -1. More...

virtual ossim_int32	getMyInputIndexToConnectTo (ossimConnectableObject *object) const
	Should return the first available index to connect to. More...

virtual ossim_int32	getMyOutputIndexToConnectTo (ossimConnectableObject *object) const
	Should return the first available index to connect to. More...

virtual bool	canConnectMyOutputTo (ossim_int32 myOutputIndex, const ossimConnectableObject *object) const
	default implementation is to allow anyone to connect to us. More...

virtual void	disconnect (ossimConnectableObject *object=0)
	Will disconnect the object passed in. More...

virtual void	disconnect (const ossimId &id)
	Will disconnect the object passed in. More...

virtual ossimRefPtr< ossimConnectableObject >	disconnectMyInput (ossim_int32 inputIndex, bool disconnectOutputFlag=true, bool createEventFlag=true)
	Will disconnect the object at the given input index and generate a connection event. More...

virtual void	disconnectMyInput (ossimConnectableObject *input, bool disconnectOutputFlag=true, bool createEventFlag=true)
	Finds the index of the passed in input and calls disconnectMyInput(inputIndex, disconnectOutputFlag, createEventFlag);. More...

virtual void	disconnectMyInputs (ConnectableObjectList &inputList, bool disconnectOutputFlag=true, bool createEventFlag=true)

virtual ossimRefPtr< ossimConnectableObject >	disconnectMyOutput (ossim_int32 outputIndex, bool disconnectInputFlag=true, bool createEventFlag=true)
	Will disconnect the object at the given output index and generate a connection event. More...

virtual void	disconnectMyOutput (ossimConnectableObject *output, bool disconnectInputFlag=true, bool createEventFlag=true)
	Will disconnect the output object. More...

virtual void	disconnectMyOutputs (ConnectableObjectList &outputList, bool disconnectOutputFlag=true, bool createEventFlag=true)

virtual void	disconnectAllInputs ()
	Will disconnect all of the input objects. More...

virtual void	disconnectAllOutputs ()
	Will disconnect all of the output objects. More...

virtual ossim_int32	connectMyInputTo (ossimConnectableObject *inputObject, bool makeOutputConnection=true, bool createEventFlag=true)
	Will try to connect this objects input to the passed in object. More...

virtual ossim_int32	connectMyInputTo (ossim_int32 inputIndex, ossimConnectableObject *inputObject, bool makeOutputConnection=true, bool createEventFlag=true)
	Will connect the specified input to the passed in object. More...

virtual bool	connectMyInputTo (ConnectableObjectList &inputList, bool makeOutputConnection=true, bool createEventFlag=true)

virtual ossim_int32	connectMyOutputTo (ossimConnectableObject *outputObject, bool makeInputConnection=true, bool createEventFlag=true)
	Will try to connect this objects output to the passed in object. More...

virtual bool	connectMyOutputTo (ConnectableObjectList &outputList, bool makeInputConnection=true, bool createEventFlag=true)

virtual bool	connectInputList (ConnectableObjectList &inputList)
	Will disconnect itself from all inputs and reset to the passed in input list. More...

virtual bool	connectOutputList (ConnectableObjectList &outputList)
	Will disconnect itself from all outputs and reset to the passed in output list. More...

virtual ossim_uint32	getNumberOfInputs () const
	Returns the number of input objects. More...

virtual ossim_uint32	getNumberOfOutputs () const
	Return the number of output objects. More...

ossimConnectableObject *	getInput (ossim_uint32 index=0)
	returns the object at the specified index. More...

const ossimConnectableObject *	getInput (ossim_uint32 index=0) const
	returns the object at the specified index. More...

ossimConnectableObject *	getOutput (ossim_uint32 index=0)
	returns the object at the specified index. More...

const ossimConnectableObject *	getOutput (ossim_uint32 index=0) const
	returns the object at the specified index. More...

virtual void	setNumberOfInputs (ossim_int32 numberOfInputs)
	Will set the number of inputs. More...

virtual bool	getInputListIsFixedFlag () const

virtual bool	getOutputListIsFixedFlag () const

virtual void	setNumberOfOutputs (ossim_int32 numberOfInputs)
	Will set the number of outputs. More...

const ConnectableObjectList &	getInputList () const

const ConnectableObjectList &	getOutputList () const

ConnectableObjectList &	getInputList ()

ConnectableObjectList &	getOutputList ()

	OSSIM_DEPRECATE_METHOD (virtual void findAllObjectsOfType(ConnectableObjectList &result, const RTTItypeid &typeInfo, bool recurse=true))

	OSSIM_DEPRECATE_METHOD (virtual void findAllObjectsOfType(ConnectableObjectList &result, const ossimString &className, bool recurse=true))

virtual void	propagateEventToOutputs (ossimEvent &event)

virtual void	propagateEventToInputs (ossimEvent &event)

virtual void	setProperty (const ossimString &name, const ossimString &value)

virtual ossim_uint32	saveStateOfAllInputs (ossimKeywordlist &kwl, bool saveThisStateFlag=true, ossim_uint32 objectIndex=1, const char *prefix=0) const
	Save the state of all inputs to a keyword list. More...

virtual bool	fillContainer (ossimConnectableContainer &container)
	Inserts this object and all of its children and inputs into the container provided. More...

bool	moveInputUp (const ossimId &id)
	Moves the input connection matching id up one in the connection list. More...

bool	moveInputDown (const ossimId &id)
	Moves the input connection matching id down one in the connection list. More...

bool	moveInputToTop (const ossimId &id)
	Moves the input connection matching id to the top of the connection list. More...

bool	moveInputToBottom (const ossimId &id)
	Moves the input connection matching id to the bottom of the connection list. More...

virtual void	accept (ossimVisitor &visitor)
	We will add a visitor interface for all connectable objects. More...

Public Member Functions inherited from ossimObject
	ossimObject ()

virtual	~ossimObject ()

virtual ossimString	getShortName () const

virtual ossimString	getLongName () const

virtual ossimString	getClassName () const

virtual RTTItypeid	getType () const

virtual bool	canCastTo (ossimObject *obj) const

virtual bool	canCastTo (const RTTItypeid &id) const

virtual bool	canCastTo (const ossimString &parentClassName) const

virtual bool	isEqualTo (const ossimObject &obj, ossimCompareType compareType=OSSIM_COMPARE_FULL) const

Public Member Functions inherited from ossimReferenced
	ossimReferenced ()

	ossimReferenced (const ossimReferenced &)

ossimReferenced &	operator= (const ossimReferenced &)

void	ref () const
	increment the reference count by one, indicating that this object has another pointer which is referencing it. More...

void	unref () const
	decrement the reference count by one, indicating that a pointer to this object is referencing it. More...

void	unref_nodelete () const
	decrement the reference count by one, indicating that a pointer to this object is referencing it. More...

int	referenceCount () const

Public Member Functions inherited from ossimListenerManager
	ossimListenerManager ()

virtual	~ossimListenerManager ()

virtual void	fireEvent (ossimEvent &event)

virtual bool	addListener (ossimListener *listener)

virtual bool	removeListener (ossimListener *listener)

virtual bool	findListener (ossimListener *listener)

Public Member Functions inherited from ossimPropertyInterface
	ossimPropertyInterface ()

virtual	~ossimPropertyInterface ()

virtual ossimString	getPropertyValueAsString (const ossimString &name) const

void	getPropertyList (std::vector< ossimRefPtr< ossimProperty > > &propertyList) const

void	setProperties (std::vector< ossimRefPtr< ossimProperty > > &propertyList)

Public Member Functions inherited from ossimErrorStatusInterface
	ossimErrorStatusInterface ()

virtual	~ossimErrorStatusInterface ()

virtual ossimErrorCode	getErrorStatus () const

virtual ossimString	getErrorStatusString () const

virtual void	setErrorStatus (ossimErrorCode error_status) const

virtual void	setErrorStatus () const

virtual void	clearErrorStatus () const

bool	hasError () const

Protected Member Functions
virtual ossimRefPtr< ossimElevCellHandler >	createCell (const ossimGpt &)

virtual void	remove (ossim_uint64 id)

void	flushCacheToMinOpenCells ()

Protected Member Functions inherited from ossimElevationDatabase
virtual	~ossimElevationDatabase ()

virtual double	getOffsetFromEllipsoid (const ossimGpt &gpt)

Protected Member Functions inherited from ossimElevSource
virtual	~ossimElevSource ()

	ossimElevSource ()
	Constructors/Destructors: More...

	ossimElevSource (const ossimElevSource &src)

Protected Member Functions inherited from ossimSource
	ossimSource (const ossimSource &rhs)

const ossimSource &	operator= (const ossimSource &rhs)

Protected Member Functions inherited from ossimConnectableObject
ossimConnectableObject *	findObjectOfType (ConnectableObjectList *connectableList, ossimVisitor &visitor)

Protected Member Functions inherited from ossimReferenced
virtual	~ossimReferenced ()

Protected Member Functions inherited from ossimListenerManager
	ossimListenerManager (const ossimListenerManager &rhs)

Protected Attributes
ossim_uint32	m_minOpenCells

ossim_uint32	m_maxOpenCells

std::mutex	m_cacheMapMutex

CellMap	m_cacheMap

ossim_uint32	m_memoryMapCellsFlag

	TYPE_DATA

Protected Attributes inherited from ossimElevationDatabase
ossimString	m_connectionString

ossimRefPtr< ossimGeoid >	m_geoid

ossim_float64	m_meanSpacing

Protected Attributes inherited from ossimElevSource
double	theMinHeightAboveMSL
	Data members: More...

double	theMaxHeightAboveMSL

double	theNullHeightValue

double	theSeaLevelValue

ossimGrect	theGroundRect

bool	theComputeStatsFlag

Protected Attributes inherited from ossimSource
bool	theEnableFlag

bool	theInitializedFlag

Protected Attributes inherited from ossimConnectableObject
ossimId	theId

ossimString	theDescription

ossimObject *	theOwner

bool	theInputListIsFixedFlag
	Indicates whether the theInputObjectList is fixed. More...

bool	theOutputListIsFixedFlag
	Indicates whether the theOutputObjectList is fixed. More...

ConnectableObjectList	theInputObjectList
	Holds a list of input objects. More...

ConnectableObjectList	theOutputObjectList
	Holds a list of output objects. More...

Protected Attributes inherited from ossimListenerManager
std::list< ossimListener * >	theListenerList

bool	theEnabledFlag

std::list< ossimListener * >	theDelayedAdd

std::list< ossimListener * >	theDelayedRemove

bool	theFireEventFlag

Protected Attributes inherited from ossimErrorStatusInterface
ossimErrorCode	theErrorStatus

Detailed Description

Definition at line 6 of file ossimElevationCellDatabase.h.

Member Typedef Documentation

◆ CellMap

typedef std::map<ossim_uint64, ossimRefPtr<CellInfo> > ossimElevationCellDatabase::CellMap

Definition at line 56 of file ossimElevationCellDatabase.h.

Constructor & Destructor Documentation

◆ ossimElevationCellDatabase() [1/2]

ossimElevationCellDatabase::ossimElevationCellDatabase ( )

inline

Definition at line 58 of file ossimElevationCellDatabase.h.

       :ossimElevationDatabase(),
       m_minOpenCells(5),
       m_maxOpenCells(10),
       m_memoryMapCellsFlag(false)
    {
    }

◆ ossimElevationCellDatabase() [2/2]

ossimElevationCellDatabase::ossimElevationCellDatabase ( const ossimElevationCellDatabase & src )

inline

Definition at line 65 of file ossimElevationCellDatabase.h.

       :ossimElevationDatabase(src),
       m_minOpenCells(src.m_minOpenCells),
       m_maxOpenCells(src.m_maxOpenCells),
       m_cacheMap(src.m_cacheMap),
       m_memoryMapCellsFlag(src.m_memoryMapCellsFlag)
    {
    }

Member Function Documentation

◆ createCell()

virtual ossimRefPtr<ossimElevCellHandler> ossimElevationCellDatabase::createCell ( const ossimGpt & )

inlineprotectedvirtual

Reimplemented in ossimImageElevationDatabase, ossimGeneralRasterElevationDatabase, ossimDtedElevationDatabase, and ossimSrtmElevationDatabase.

Definition at line 129 of file ossimElevationCellDatabase.h.

Referenced by getOrCreateCellHandler().

    {
       return 0;
    }

◆ createId()

virtual ossim_uint64 ossimElevationCellDatabase::createId ( const ossimGpt & ) const

inlinevirtual

Reimplemented in ossimGeneralRasterElevationDatabase, ossimDtedElevationDatabase, and ossimSrtmElevationDatabase.

Definition at line 120 of file ossimElevationCellDatabase.h.

Referenced by getOrCreateCellHandler().

    {
       return 0;
    }

◆ flushCacheToMinOpenCells()

void ossimElevationCellDatabase::flushCacheToMinOpenCells ( )

inlineprotected

Definition at line 141 of file ossimElevationCellDatabase.h.

Referenced by getOrCreateCellHandler(), and ossimImageElevationDatabase::getOrCreateCellHandler().

    {
       // lets flush the cache from least recently used to recent.
       //
       CellMap sortedMap;
       CellMap::iterator iter = m_cacheMap.begin();
       
       while(iter != m_cacheMap.end())
       {
          sortedMap.insert(std::make_pair(iter->second->m_timestamp, iter->second));
          ++iter;
       }
       
       iter = sortedMap.begin();
       while((iter!=sortedMap.end())&&(m_cacheMap.size() > m_minOpenCells))
       {
          remove(iter->second->id());
          ++iter;
       }
    }

◆ getCellsForBounds()

void ossimElevationCellDatabase::getCellsForBounds	(	const ossim_float64 &	minLat,
		const ossim_float64 &	minLon,
		const ossim_float64 &	maxLat,
		const ossim_float64 &	maxLon,
		std::vector< ossimFilename > &	cells,
		ossim_uint32	maxNumberOfCells = `0`
	)

Gets a list of elevation cells needed to cover bounding box.

Parameters

connectionString	Typically elevation repository, e.g.: "/data1/elevation/srtm/1arc"
minLat	Minimum latitude of bounding box.
minLon	Minimum longitude of bounding box.
maxLat	Maximum latitude of bounding box.
maxLon	Maximum longitude of bounding box.
cells	Initialized by this.
maxNumberOfCells	Value of 0 indicates return as many as you can. Any positive number will only return that number of cells.

Definition at line 20 of file ossimElevationCellDatabase.cpp.

References ossimString::begin(), ossimElevCellHandler::getFilename(), getOrCreateCellHandler(), ossimGpt::lat, ossimGpt::lon, ossim::min< ossim_float64 >(), ossimString::size(), and ossimRefPtr< T >::valid().

Referenced by ossimElevManager::getCellsForBounds().

 {
    const ossim_float64 SEARCH_SPACING = 0.1;
    ossimGpt gpt(0.0, 0.0, 0.0);
    ossimFilename f;
    ossim_uint32 limitNumberOfCells = maxNumberOfCells>0?maxNumberOfCells:999999999;
    // Latitude loop:
    ossim_float64 lat = minLat;
    while ( (lat <= maxLat) &&(cells.size() < limitNumberOfCells))
    {
       gpt.lat = lat;
 
       // Longitude loop:
       ossim_float64 lon = minLon;
       while ( (lon <= maxLon ) &&(cells.size()< limitNumberOfCells))
       {
          gpt.lon = lon;
 
          ossimRefPtr<ossimElevCellHandler> h = getOrCreateCellHandler( gpt );
          if ( h.valid() )
          {
             // Get the file name:
             f = h->getFilename();
             
             if ( f.size() )
             {
                // See if it's already in the list, i.e. duplicate:
                std::vector<ossimFilename>::const_iterator i = cells.begin();
                while ( i != cells.end() )
                {
                   if ( f == (*i) )
                   {
                      break;
                   }
                   ++i;
                }
                
                if ( i == cells.end() )
                {
                   // Add it to the list:
                   cells.push_back( f );
                }
             }
          }
 
          if ( lon < maxLon )
          {
             lon = ossim::min<ossim_float64>( (lon+SEARCH_SPACING), maxLon );
          }
          else
          {
             break;
          }
          
       } // Matches: while ( lon <= maxLon )
 
       if ( lat < maxLat )
       {
          lat = ossim::min<ossim_float64>( (lat+SEARCH_SPACING), maxLat );
       }
       else
       {
          break;
       }
       
    } // Matches: while ( lat <= maxLat )
    
 } // End: ossimElevationCellDatabase::getCellsForBounds( ... )

◆ getMaxOpenCells()

virtual ossim_uint32 ossimElevationCellDatabase::getMaxOpenCells ( ) const

inlinevirtual

Definition at line 80 of file ossimElevationCellDatabase.h.

    {
       return m_maxOpenCells;
    }

◆ getMemoryMapCellsFlag()

virtual bool ossimElevationCellDatabase::getMemoryMapCellsFlag ( ) const

inlinevirtual

Definition at line 90 of file ossimElevationCellDatabase.h.

    {
       return m_memoryMapCellsFlag;
    }

◆ getMinOpenCells()

virtual ossim_uint32 ossimElevationCellDatabase::getMinOpenCells ( ) const

inlinevirtual

Definition at line 76 of file ossimElevationCellDatabase.h.

    {
       return m_minOpenCells;
    }

◆ getOpenCellList()

void ossimElevationCellDatabase::getOpenCellList ( std::vector< ossimFilename > & list ) const

virtual

Definition at line 5 of file ossimElevationCellDatabase.cpp.

References m_cacheMap.

Referenced by ossimElevManager::getOpenCellList().

 {
    CellMap::const_iterator iter = m_cacheMap.begin();
 
    while(iter!=m_cacheMap.end())
    {
       if ( iter->second->m_handler.valid() )
       {
          list.push_back(iter->second->m_handler->getFilename());
       }
       ++iter;
    }
 
 }

◆ getOrCreateCellHandler()

ossimRefPtr< ossimElevCellHandler > ossimElevationCellDatabase::getOrCreateCellHandler ( const ossimGpt & gpt )

virtual

Reimplemented in ossimImageElevationDatabase.

Definition at line 99 of file ossimElevationCellDatabase.cpp.

References createCell(), createId(), flushCacheToMinOpenCells(), ossimRefPtr< T >::get(), m_cacheMap, m_cacheMapMutex, and m_maxOpenCells.

Referenced by ossimDtedElevationDatabase::getAccuracyInfo(), getCellsForBounds(), ossimSrtmElevationDatabase::getHeightAboveMSL(), ossimDtedElevationDatabase::getHeightAboveMSL(), and ossimGeneralRasterElevationDatabase::getHeightAboveMSL().

 {
    ossimRefPtr<ossimElevCellHandler> result = 0;
 
    ossim_uint64 id = createId(gpt);
 
    m_cacheMapMutex.lock();
 
    CellMap::iterator iter = m_cacheMap.find(id);
    if(iter != m_cacheMap.end())
    {
       iter->second->updateTimestamp();
       result = iter->second->m_handler.get();
    }
    else
    {
       m_cacheMapMutex.unlock();                                                                  
 
       result = createCell(gpt);
 
       m_cacheMapMutex.lock();
 
       //---
       // Code speed up:
       // Add it to the cache even if it's not valid so this database will not
       // call createCell(...) again.
       //--- 
       m_cacheMap.insert(std::make_pair(id, new CellInfo(id, result.get())));
       
       // Check the map size and purge cells if needed.
       if(m_cacheMap.size() > m_maxOpenCells)
       {
          flushCacheToMinOpenCells();
       }
    }
 
    m_cacheMapMutex.unlock();
               
    return result;
 }

◆ loadState()

bool ossimElevationCellDatabase::loadState	(	const ossimKeywordlist &	kwl,
		const char *	prefix = `0`
	)

virtual

Method to the load (recreate) the state of the object from a keyword list. Return true if ok or false on error.

Reimplemented from ossimElevationDatabase.

Reimplemented in ossimImageElevationDatabase, ossimDtedElevationDatabase, ossimGeneralRasterElevationDatabase, and ossimSrtmElevationDatabase.

Definition at line 178 of file ossimElevationCellDatabase.cpp.

References ossimString::empty(), ossimKeywordlist::find(), ossimElevationDatabase::loadState(), m_maxOpenCells, m_memoryMapCellsFlag, m_minOpenCells, ossimString::toBool(), and ossimString::toUInt32().

Referenced by ossimSrtmElevationDatabase::loadState(), ossimDtedElevationDatabase::loadState(), and ossimGeneralRasterElevationDatabase::loadState().

 {
    ossimString minOpenCells = kwl.find(prefix, "min_open_cells");
    ossimString maxOpenCells = kwl.find(prefix, "max_open_cells");
    if(!minOpenCells.empty()&&
       !maxOpenCells.empty())
    {
       m_minOpenCells = minOpenCells.toUInt32();
       m_maxOpenCells = maxOpenCells.toUInt32();
       if(m_maxOpenCells < m_minOpenCells)
       {
          std::swap(m_minOpenCells, m_maxOpenCells);
       }
    }
    ossimString memoryMapCellsFlag = kwl.find(prefix, "memory_map_cells");
    if(!memoryMapCellsFlag.empty())
    {
       m_memoryMapCellsFlag = memoryMapCellsFlag.toBool();
    }
    return ossimElevationDatabase::loadState(kwl, prefix);
 }

◆ print()

std::ostream & ossimElevationCellDatabase::print ( std::ostream & out ) const

virtual

Outputs theErrorStatus as an ossimErrorCode and an ossimString.

Returns: std::ostream&

Note: Derived classes should only have to implement a virtual print, not an operator<< funtion as it's implemented here.

Reimplemented from ossimElevationDatabase.

Reimplemented in ossimImageElevationDatabase, ossimGeneralRasterElevationDatabase, and ossimDtedElevationDatabase.

Definition at line 214 of file ossimElevationCellDatabase.cpp.

References saveState().

 {
    ossimKeywordlist kwl;
    saveState(kwl);
    out << "\nossimElevationCellDatabase @ "<< (ossim_uint64) this << kwl << ends;
    return out;
 }

◆ remove()

virtual void ossimElevationCellDatabase::remove ( ossim_uint64 id )

inlineprotectedvirtual

Reimplemented in ossimImageElevationDatabase.

Definition at line 133 of file ossimElevationCellDatabase.h.

Referenced by ossimImageElevationDatabase::remove().

    {
       CellMap::iterator iter = m_cacheMap.find(id);
       if(iter != m_cacheMap.end())
       {
          m_cacheMap.erase(iter);
       }
    }

◆ saveState()

bool ossimElevationCellDatabase::saveState	(	ossimKeywordlist &	kwl,
		const char *	prefix = `0`
	)		const

virtual

Method to save the state of the object to a keyword list. Return true if ok or false on error.

Reimplemented from ossimElevationDatabase.

Reimplemented in ossimImageElevationDatabase, ossimDtedElevationDatabase, ossimGeneralRasterElevationDatabase, and ossimSrtmElevationDatabase.

Definition at line 200 of file ossimElevationCellDatabase.cpp.

References ossimKeywordlist::add(), ossimObject::getShortName(), ossimElevationDatabase::m_geoid, m_maxOpenCells, m_memoryMapCellsFlag, m_minOpenCells, ossimElevationDatabase::saveState(), and ossimRefPtr< T >::valid().

Referenced by print(), ossimSrtmElevationDatabase::saveState(), ossimDtedElevationDatabase::saveState(), ossimGeneralRasterElevationDatabase::saveState(), and ossimImageElevationDatabase::saveState().

 {
    kwl.add(prefix, "memory_map_cells", m_memoryMapCellsFlag, true);
    kwl.add(prefix, "min_open_cells", m_minOpenCells, true);
    kwl.add(prefix, "max_open_cells", m_maxOpenCells, true);
 
    if(m_geoid.valid())
    {
       kwl.add(prefix, "geoid.type", m_geoid->getShortName(), true);
    }
 
    return ossimElevationDatabase::saveState(kwl, prefix);
 }

◆ setMemoryMapCellsFlag()

virtual void ossimElevationCellDatabase::setMemoryMapCellsFlag ( bool flag )

inlinevirtual

Definition at line 94 of file ossimElevationCellDatabase.h.

    {
       m_memoryMapCellsFlag = flag;
    }

◆ setMinMaxOpenCells()

virtual void ossimElevationCellDatabase::setMinMaxOpenCells	(	ossim_uint64	minCellCount,
		ossim_uint64	maxCellCount
	)

inlinevirtual

Definition at line 84 of file ossimElevationCellDatabase.h.

    {
       m_minOpenCells = minCellCount;
       m_maxOpenCells = maxCellCount;
    }

Member Data Documentation

◆ m_cacheMap

CellMap ossimElevationCellDatabase::m_cacheMap

protected

Definition at line 165 of file ossimElevationCellDatabase.h.

Referenced by getOpenCellList(), getOrCreateCellHandler(), and ossimImageElevationDatabase::getOrCreateCellHandler().

◆ m_cacheMapMutex

std::mutex ossimElevationCellDatabase::m_cacheMapMutex

mutableprotected

Definition at line 164 of file ossimElevationCellDatabase.h.

Referenced by ossimImageElevationDatabase::createCell(), getOrCreateCellHandler(), and ossimImageElevationDatabase::getOrCreateCellHandler().

◆ m_maxOpenCells

ossim_uint32 ossimElevationCellDatabase::m_maxOpenCells

protected

Definition at line 163 of file ossimElevationCellDatabase.h.

Referenced by getOrCreateCellHandler(), ossimImageElevationDatabase::getOrCreateCellHandler(), loadState(), and saveState().

◆ m_memoryMapCellsFlag

ossim_uint32 ossimElevationCellDatabase::m_memoryMapCellsFlag

protected

Definition at line 166 of file ossimElevationCellDatabase.h.

Referenced by ossimSrtmElevationDatabase::createCell(), ossimDtedElevationDatabase::createCell(), loadState(), ossimGeneralRasterElevationDatabase::openGeneralRasterDirectory(), and saveState().

◆ m_minOpenCells

ossim_uint32 ossimElevationCellDatabase::m_minOpenCells

protected

Definition at line 162 of file ossimElevationCellDatabase.h.

Referenced by loadState(), and saveState().

◆ TYPE_DATA

ossimElevationCellDatabase::TYPE_DATA

protected

Definition at line 168 of file ossimElevationCellDatabase.h.

The documentation for this class was generated from the following files:

Classes

Public Types

Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description

Member Typedef Documentation

◆ CellMap

Constructor & Destructor Documentation

◆ ossimElevationCellDatabase() [1/2]

◆ ossimElevationCellDatabase() [2/2]

Member Function Documentation

◆ createCell()

◆ createId()

◆ flushCacheToMinOpenCells()

◆ getCellsForBounds()

◆ getMaxOpenCells()

◆ getMemoryMapCellsFlag()

◆ getMinOpenCells()

◆ getOpenCellList()

◆ getOrCreateCellHandler()

◆ loadState()

◆ print()

◆ remove()

◆ saveState()

◆ setMemoryMapCellsFlag()

◆ setMinMaxOpenCells()

Member Data Documentation

◆ m_cacheMap

◆ m_cacheMapMutex

◆ m_maxOpenCells

◆ m_memoryMapCellsFlag

◆ m_minOpenCells

◆ TYPE_DATA